Imran KhanMULTAN, PAKISTAN - MAY 06: A supporter ties a party ribbon onto the arm of Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, during an election campaign rally on May 06, 2013 in Multan, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanMULTAN, PAKISTAN - MAY 06: Supporters wave flags and cheer prior to the arrival of Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, during an election campaign rally on May 06, 2013 in Multan, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanLAHORE, PAKISTAN - MAY 05: Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, sits on stage prior to addressing volunteers and supporters during a rally for volunteers on May 05, 2013 in Lahore, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanFAISALABAD, PAKISTAN - MAY 05: Punjab police commandos stand guard in front of stage prior to Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, addressing supporters during an election campaign rally on May 05, 2013 in Faisalabad, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanPakistani cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party, Imran Khan addresses party workers and supporters at a ceremony in Lahore on May 5, 2013. Three people were killed and 35 others wounded in twin bomb blasts near a local party office in the southern city of Karachi late Saturday, police said, ahead of next week's historic elections.

Imran KhanImran Khan, Pakistan's cricket star-turned-politician offers prayers at the mausoleum of Mohammad Ali Jinnah, founder of Pakistan during an election campaign in Karachi, Pakistan, Tuesday, May 7, 2013. Pakistan is scheduled to hold parliamentary elections on May 11, the first transition between democratically elected governments in a country that has experienced three military coups and constant political instability since its creation in 1947.

Imran KhanPakistani cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party, Imran Khan attend a general election campaign meeting in Charsadda on May 4, 2013. A Pakistani candidate running for parliament in next week's historic election was injured on Saturday as his vehicle hit a roadside bomb in the troubled northwest, officials said.

Imran KhanMULTAN, PAKISTAN - MAY 06: Supporters dance prior to the arrival of Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, during an election campaign rally on May 06, 2013 in Multan, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanPakistani cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party, Imran Khan addresses the party workers and supporters at his election campaign in Lahore on May 5, 2013. A roadside bomb exploded at an election rally in southwest Pakistan on Sunday killing two people, officials said as violence continued ahead of historic polls on Saturday.

Imran KhanFAISALABAD, PAKISTAN - MAY 05: Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, addresses supporters during an election campaign rally on May 05, 2013 in Faisalabad, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanMULTAN, PAKISTAN - MAY 06: Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, addresses supporters during an election campaign rally on May 06, 2013 in Multan, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanSupporters of Imran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI) hold a large scale model of a cricket bat during an election campaign rally in Lahore May 5, 2013. Pakistan's general elections will take place on May 11. Picture taken May 5, 2013.

Imran KhanPakistani cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party, Imran Khan attends a gathering of party workers and supporters in Lahore on May 5, 2013. Three people were killed and 35 others wounded in twin bomb blasts near a local party office in the southern city of Karachi late Saturday, police said, ahead of next week's historic elections.

Imran KhanCricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party Imran Khan (C) is surrounded by his supporters during a campaign rally in Karachi on May 7, 2013. Pakistan will elect its new government for the next five years in polls on May 11. The election of the national and four provincial assemblies will mark the first time a civilian government has completed a full term and handed over to another, in a country that has been ruled by the military for half its existence.

Imran KhanImran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI) addresses his supporters during an election campaign rally in Lahore May 5, 2013. Pakistan's general elections will take place on May 11. Picture taken May 5, 2013.

Imran KhanCricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party Imran Khan (C) speaks to supporters during a campaign rally in Karachi on May 7, 2013. Pakistan will elect its new government for the next five years in polls on May 11. The election of the national and four provincial assemblies will mark the first time a civilian government has completed a full term and handed over to another, in a country that has been ruled by the military for half its existence.

Imran KhanFAISALABAD, PAKISTAN - MAY 05: Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, addresses supporters during an election campaign rally on May 05, 2013 in Faisalabad, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanImran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI) addresses his supporters during an election campaign rally in Lahore May 5, 2013. Pakistan's general elections will take place on May 11. Picture taken May 5, 2013.

Imran KhanCricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party Imran Khan (R) is surrounded by his supporters during a campaign rally in Karachi on May 7, 2013. Pakistan will elect its new government for the next five years in polls on May 11. The election of the national and four provincial assemblies will mark the first time a civilian government has completed a full term and handed over to another, in a country that has been ruled by the military for half its existence.

Imran KhanA supporter of Imran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI), chants slogans during Khan's visit to the mausoleum of Mohammad Ali Jinnah in Karachi May 7, 2013. Pakistan's general elections will take place on May 11. Jinnah is generally regarded as the founder of Pakistan.

Imran KhanImran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI), cheers his supporters after his visit to the mausoleum of Mohammad Ali Jinnah, founder and first governor-general of Pakistan, during an election campaign in Karachi May 7, 2013. Pakistan's general election will be held on May 11.

Imran KhanImran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI), addresses his supporters after his visit to the mausoleum of Mohammad Ali Jinnah, founder and first governor-general of Pakistan, during an election campaign in Karachi May 7, 2013. Pakistan's general election will be held on May 11.

Imran KhanSupporters of Pakistan Tehreek-e-Insaf headed by Pakistan's cricket star-turned-politician Imran Khan, rally in Karachi, Pakistan, Tuesday, May 7, 2013. Pakistan is scheduled to hold parliamentary elections on May 11, the first transition between democratically elected governments in a country that has experienced three military coups and constant political instability since its creation in 1947.

Imran KhanLAHORE, PAKISTAN - MAY 05: Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, addresses volunteers and supporters during a rally for volunteers on May 05, 2013 in Lahore, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanSupporters of Imran Khan, Pakistani cricketer-turned-politician and chairman of political party Pakistan Tehreek-e-Insaf (PTI), chant slogans while riding on a truck decorated with a campaign poster in Karachi May 4, 2013. Pakistan's general election will be held on May 11.

Imran KhanLAHORE, PAKISTAN - MAY 05: Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, addresses party volunteers and supporters during a rally for volunteers on May 05, 2013 in Lahore, Pakistan. Pakistan's parliamentary elections are due to be held on May 11. Imran Khan of Pakistan Tehrik e Insaf (PTI) and Nawaz Sharif of the Pakistan Muslim League-N (PMLN) have been campaigning hard in the last weeks before polling.

Imran KhanPakistani cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party, Imran Khan addresses party workers and supporters at a ceremony in Lahore on May 5, 2013. Three people were killed and 35 others wounded in twin bomb blasts near a local party office in the southern city of Karachi late Saturday, police said, ahead of next week's historic elections.

Imran KhanSupporters of cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party Imran Khan wave party flags outside the mausoleum of Pakistan's founder Mohammad Ali Jinnah during a campaign rally in Karachi on May 7, 2013. Pakistan will elect its new government for the next five years in polls on May 11. The election of the national and four provincial assemblies will mark the first time a civilian government has completed a full term and handed over to another, in a country that has been ruled by the military for half its existence.

Imran Khan

Pakistani cricket legend and chairman of Pakistan Tehreek-e-Insaaf (PTI) or Movement for Justice party, Imran Khan addresses party workers and supporters at a ceremony in Lahore on May 5, 2013. Three people were killed and 35 others wounded in twin bomb blasts near a local party office in the southern city of Karachi late Saturday, police said, ahead of next week's historic elections.